Tighthead prop Lewis Thiede joins the Knights from Championship competition, Ealing Trailfinders, having first been a Knight back in 2008.
Moving from Donny colours to those of Wasps in 2011, Lewis spent his time at the London club on dual registration with London Scottish, ultimately moving on a permanent basis to the Richmond Athletic Ground ahead of the 2013/14 season.
Making the switch to Ealing Trailfinders in 2016, Lewis made just shy of 100 appearances for Ealing in two stints for the club having moved to the Premiership with Bristol Bears for two years before returning to London and the Championshp in 2020.
Named in the Championship team of the season for 2021/22, whilst at Ealing Lewis won the British and Irish Cup in 2018, the Trailfinders Challenge Cup in 2021 as well as the Championship league and Championship Cup in 2021/22.
The 32-year-old returns to Doncaster as a strong scrummager looking to continue his set-piece strength amongst Steve Boden’s pack.